Process for making test paper used for acceptance test of transport oil container after washing

A preparation process and container technology, applied in the field of test paper preparation technology for acceptance, can solve the problems of inability to measure the rust degree of oil storage containers, discoloration lag, inconspicuous gradient color difference, etc., and achieves convenient test use, simple formula, and preparation process. handy effect

Inactive Publication Date: 2005-03-16
LOGISTICAL ENGINEERING UNIVERSITY OF PLA
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are also detections using H + Extensive test paper, but because the pH test paper is a gradient change, and the color difference of each gradient is not obvious, especially for dilute acid and dilute alkali, it is basically ineffective and cannot be detected. This is because dilute acid and dilute alkali contain H + The concentration is very low, and it will be even lower when it is reflected on the test paper, so there is a lag behind the relative discoloration
It is even more impossible to measure the rust degree of the oil storage container

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] Its preparation process embodiment is as follows:

[0018] Select a wood pulp microporous quantitative filter paper with a thickness of 0.1mm, compactness, fiber distribution and air permeability that is easy to be consistent, put it on a paper cutter, cut it into strips with a width of 50mm, and use 0.2 grams of methyl red, ethyl red After mixing 0.2 grams and 1.2 grams of bromothymol blue, dissolve in 1000ml of 30% alcohol solution, let it stand for 30 minutes, filter with a 5 micron glass sand funnel, and then cut into 50mm wide strips of micropores to quantify Put the filter paper into the above-mentioned filtered solution, soak for 6 minutes, take out the soaked microporous quantitative filter paper, rinse once with distilled water containing a small amount of dilute HCl, PH=5.5, and then put it in an electric oven to dry at 45°C, time 5 minutes, and finally cut into 60mm long test paper in a paper cutter, inspect and pack.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
Login to view more

Abstract

It is an acceptance reagent paper process for transmission oil container after wash. As for the shortcomings of current reagent paper, this invention provides a simple and convenient acceptance process. The process is the following: to cut the micropore quantitative filter paper into strips; to put it into the alcohol solvent with methyl red, ethyl red, thymol blue; to take out the dipped filter paper and wash it with stilled water with PH value 5.5; to lay it in electric oven; finally to cut it into certain specification and inject and pack it.

Description

1. Technical field [0001] The invention relates to a chemical test paper, in particular to a process for preparing a test paper for acceptance of a transportation oil storage container after cleaning. 2. Background technology [0002] Before shipment of various oils, the containers of the means of transportation, such as oil tanks and tankers, need to be washed to ensure that the oil products will not be contaminated by pollutants brought in by oil vehicles and ship containers, which will affect the quality of the oil products. The current washing process is generally to repeatedly wash the oil truck and the inner wall of the oil tank with acid and alkali to completely remove residual oil, grease, rust and other chemicals, and then rinse off the residual acid and alkali with a large amount of clear water. As to whether the transport oil storage container after cleaning is qualified, currently, according to the relevant regulations in the China Petroleum and Chemical Industry...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/77G01N21/78G01N21/80
Inventor 唐得刚姚如杰王雷王刚
Owner LOGISTICAL ENGINEERING UNIVERSITY OF PLA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap